NASA Researcher, UNC Grad Student Records Strange 'Alien Sounds' From Space Posted Jun 6, 2015 A graduate student from the University of North Carolina was able to record strange noise in the Earth's stratosphere using ultra-sensitive microphones fitted on a high altitude scientific balloon. UNC's Daniel Bowman captured infra-sonic sounds with his balloon while conducting a scientific study for the National Aeronautics and Space Administration (NASA) and the Louisiana Space Consortium. (Tech Times)